skinny's blog

Processing Fundamentals

DorkbotPDX invites you to "Processing Fundamentals".

A free workshop at Flux

DorkbotPDX is happy to offer a 4-hour intro to Processing -- a graphics programming environment. Students will learn the basics of Processing.
No prior programming experience required!


  • When: Sunday, April 27. 2-6pm
  • Where: Flux Hackerspace (412 NW Couch #222, Portland, OR)
  • Cost: FREE!!!
  • Bring: A laptop with Processing 2.0 installed (if you can)
  • RSVP:

Source code: Processing_Fundamentals

Built with Processing and Processing.js

Next meeting Venue Change: Bunk Bar SE.

Just a quick note:  Next Monday we meet at Bunk Bar on the inner east side, at 7:00pm.  You can find a map to Bunk Bar here.  Harry Dean Stanton will be waiting for you.

 A repo man spends his life getting into tense situations.

DorkbotPDX 0x0A Presentation Videos

Thanks to everyone that presented (especially the new folks during OpenDork) and to thanks to everyone that came out! 

Glenn Phillips, Self Balancing Robots (

Church of Robotron (


DorkbotPDX Open Mic Surgery Event Videos

Video from the Open Mic Surgery Event.

These videos never made it to the site, I'm fixing that now!  Thanks to everyone that came out!  (Mouse over blank area below to trigger video loads.)

Use MAME's debugger to reverse engineer and extend old games

Use MAME's debugger to reverse engineer and extend old games

For the Church of Robotron's installation at Toorcamp 2012, we needed to be able to trigger physical events when game events happened in Robotron 2084. A quick summary for context:

  • We had an Altar that contained a Linux box that ran MAME and Robotron 2084
  • We had joysticks that acted as HID devices
  • Player would kneal down and play the game. As events happened in the game (player death, human death, lasers firing), we would trigger physical events.

We choose to use MAME's debugger to detect game events and notify other pieces of software when they happened. This is a quick tutorial for others (and a reminder to ourselves) if you're interested in doing similar things. We're going to find out how to detect player death!

Kinect Cat Sequencer

I went to the DorkbotPDX Open Lab today (Feb 26th, 2012) at ADX and sat down to play with the Kinect I got a while ago. The result is a "Cat Sequencer" that uses the Kinect to trigger samples. There are two looping samples and one non looping sample. The trigger areas for the samples have been placed around the plates. They are visible on the computer as cubes. The more solid the cubes the more filled the trigger area is. Once the trigger is filled enough, it plays a sample. Read on for more details and code.

Kinect Cat Sequencer from Brian Richardson on Vimeo.

Processing Workshop at PNCA November 28th, 1pm, Free!


Processing is an open source programming language and environment for people who want to create images, animations, and interactions. During this workshop we will explore this environment and make some fun graphics! This workshop is aimed at people with little to no programming experience who want a playground to explore programming and graphics and for experienced programmers that just want an overview of what processing offers.

I've got my finger on the button.

I got a desk from Jason with arcade buttons in it. I finally got around to hooking it up to a Teensy ( and now the buttons control my music player and allow me to smite my enemies.


I'm playing with a FPGA starter kit board and decided to blog about my learning process. I got the board from Jared at Sharebrained, thanks! The board I have is a Spartan-3 Board from Digilient. It has a Xilinx FPGA on it. It also came with a JTAG-USB cable which could end up be useful with other projects?

On Gallery Show this October

This is a quick reminder to get your project proposal in for the On Gallery Show! Idea submission is due on the 15th. Sometimes it's good to have an external deadline to push your projects forward quicker! ;)

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